Minor LookupIterator cleanups

src/lookup.cc

Index: src/lookup.cc
diff --git a/src/lookup.cc b/src/lookup.cc
index 56001c3e171ceb8366ff7c3631473bbd01e2d218..58e3032e502d2e2fbfed4d7ac855dff500b86e28 100644
--- a/src/lookup.cc
+++ b/src/lookup.cc
@@ -35,8 +35,8 @@ void LookupIterator::Next() {
   // Either was found in the receiver, or the receiver has no prototype.
   if (holder == NULL) return;
 
-  maybe_holder_ = handle(holder);
-  holder_map_ = handle(map);
+  maybe_holder_ = handle(holder, isolate_);
+  holder_map_ = handle(map, isolate_);
 }
 
 
@@ -53,7 +53,7 @@ Handle<JSReceiver> LookupIterator::GetRoot() const {
 Handle<Map> LookupIterator::GetReceiverMap() const {
   Handle<Object> receiver = GetReceiver();
   if (receiver->IsNumber()) return isolate_->factory()->heap_number_map();
-  return handle(Handle<HeapObject>::cast(receiver)->map());
+  return handle(Handle<HeapObject>::cast(receiver)->map(), isolate_);
 }
 
 
@@ -184,7 +184,7 @@ void LookupIterator::PrepareTransitionToDataProperty(
   }
 
   transition_map_ = Map::TransitionToDataProperty(
-      handle(receiver->map()), name_, value, attributes, store_mode);
+      handle(receiver->map(), isolate_), name_, value, attributes, store_mode);
   state_ = TRANSITION;
 }
 
@@ -209,8 +209,9 @@ void LookupIterator::TransitionToAccessorProperty(
   // observable.
   Handle<JSObject> receiver = GetStoreTarget();
   maybe_holder_ = receiver;
-  holder_map_ = Map::TransitionToAccessorProperty(
-      handle(receiver->map()), name_, component, accessor, attributes);
+  holder_map_ =
+      Map::TransitionToAccessorProperty(handle(receiver->map(), isolate_),
+                                        name_, component, accessor, attributes);
   JSObject::MigrateToMap(receiver, holder_map_);
 
   ReloadPropertyInformation();
@@ -243,7 +244,7 @@ void LookupIterator::TransitionToAccessorProperty(
   JSObject::SetNormalizedProperty(receiver, name_, pair, details);
 
   JSObject::ReoptimizeIfPrototype(receiver);
-  holder_map_ = handle(receiver->map());
+  holder_map_ = handle(receiver->map(), isolate_);
   ReloadPropertyInformation();
 }